Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1740 - 1970 1971 - 1994 1995 - 1996 1997 - 1998 1999 - 2000 teenager English
1740 - 1776 1777 1778 1779 - 1966 1967 - 1999 teener English
1740 - 1758 1759 - 1952 1953 - 1967 1968 - 1983 1984 - 2000 teen English

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